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how many koi
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TJ
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Joined: 26 Sep 2005

PostPosted: 2006.06.29(Thu)16:32    Post subject: Reply with quote

I see Oscer. I guess you know more, I have only had koi for a year+ Wink .

But Brian89 wants 3-4 koi.. I think thats a bit much. Maybe 1-2.
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Brian89
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Joined: 28 Apr 2006
Location: Perth (AUS)

PostPosted: 2006.06.30(Fri)2:12    Post subject: Reply with quote

Well the filter is just a biological filter consisting of Japanese matting, coarse sponges and variouse biological media where I use the gravity method with a use of a pond pump that flows at 4000l/per hr, also in the inlet tube I have connected a UV. By the sounds of things I might have to buy 3 koi at 20cm and see how they go but I don't really want to get goldfish as I find that koi have more variety in colour.
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Oscer
Exemplars


Joined: 03 Nov 2005
Location: South Africa

PostPosted: 2006.06.30(Fri)9:56    Post subject: Reply with quote

Sounds good Brian89, but I would advise you to go for some type of mechanical filtration as well. This will provide clearer water and you won't have to clean the bio so often.

What size/wattages is your UV?
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Brian89
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Joined: 28 Apr 2006
Location: Perth (AUS)

PostPosted: 2006.06.30(Fri)23:17    Post subject: Reply with quote

Well I am not sure if you have heard of this brand, its called a Hozelock cyprio Vorton which says maximum for 4500l pond and the uvc tube is a 9watt TUV PL-S light.
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Oscer
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Joined: 03 Nov 2005
Location: South Africa

PostPosted: 2006.07.01(Sat)11:11    Post subject: Reply with quote

9watts is fine for your pond.

Well, it has a single ended lamp that ensures 30% (or so they say) more UV light is emitted than from a double ended UV light of the same wattage.
The single ended lamp lasts up to 60% longer than double ended lamps. (But yet, I replace my double and signal ended bulbs at the same time and they work equally well)

It also has a quartz tube, which they say ensures 87% of Ultraviolet light penetrates. Compare this with 30% - 50% for some competitor
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Oscer
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Joined: 03 Nov 2005
Location: South Africa

PostPosted: 2006.07.01(Sat)11:14    Post subject: Reply with quote

9watts is fine for your pond.

Well, it has a single ended lamp that ensures 30% (or so they say) more UV light is emitted than from a double ended UV light of the same wattage.
The single ended lamp lasts up to 60% longer than double ended lamps. (But yet, I replace my double and signal ended bulbs at the same time and they work equally well)

It also has a quartz tube, which they say ensures 87% of Ultraviolet light penetrates. Compare this with 30% - 50% for some competitor
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Brian89
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Joined: 28 Apr 2006
Location: Perth (AUS)

PostPosted: 2006.07.01(Sat)20:52    Post subject: Reply with quote

OK, thanks for the help Oscer, I feel much better about keeping koi now and I think I am ready to buy 3 kois at 20cm and see what happens from there.
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